Andrzej Sapkowski is a Polish writer best known for his fantasy book series The Witcher. The books have been adapted into a trilogy of RPG video games and two TV series.
The given (basic) pronunciation bothers me because "drzej" is not an equivalent of "jay". "D" and "rz" are two separate sounds, /d/ and /zh/ (like "s" in "vision"). They kinda blend in together, but /d/ is still audible.